Fume-arrester.



G. G. WHITMORE.

FUMB ARRESTER.

APPLICATION FILED MAR. 24, 1909.

Patented Mar. 22, 1910.

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WITNESSES A TTORNE Y8 0. G. WHITMORE.

FUME ARRESTER.

APPLICATION FILED MAR. 24, 1909.

Patented Mar.22,1910.

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ATTORNEYS c. c. WHITMORE.

FUMB ARRESTER. APPLIOATION FILED MAR. 24. 1909.

Patented Mar.22, 1910.

3 SHEETS-811E133.

WITNESS ATTOR/VE Y8 CLAUDE G. WHITMORE, OF BUTTE, MONTANA.

FUME-ARRESTER.

To all whom it may concern:

Be it known that I, CLAUDE C. Wnrrl More, a citizen of the United States, and a resident of Butte, in the county of Silverbow and State of Montana, and whose postofiice address is No. 213 North Idahostreet, have invented a certain new and useful Improvement in Fume-Arresters, of which the following is a specification.

My inventlon relates to devices for arresting the fumes in smoke and obnoxious ases from furnaces, and it consists in com inations, constructions and arrangements here- 5 in described and claimed.

My invention is especially applicable to those furnaces in use in smelters, in which certain ores are roasted which give off gases and fumes that are injurious to vegetation and which tend to render the atmosphere of the surrounding locality unfit to breathe.

The main object of my invention is to provide a device which may be attached to the furnace of the ordinary smelter and by which the smoke and gases may be condensed and the injurious substances extracted.

A further object of my invention is to .provide a condensing system. in which the water, which constitutes the' main condensing age t, may be used again and again, thereby rendering the condensing plant economical in operation.

Other objects and advantages will appear in the followin specification and the novel features of the invention will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanyin the several views, and in which Figure 1 is a sectional view of one portion of the condensing system. Fig. 2 is a view partly in section of the furnace taken alon the line 22 of Fig. 1, looking in the irection of the arrow. Fi 3 is a plan view of the water tank taken a ong the line 3-3 ofFig. 1. Fig. 4 isa detail view and Specification of Letters Patent.

Application filed March 24, 1909.

drawings, in which similar reference c aracters indicate like parts 1n 1 Patented Mar. 22, 1910.

Serial No. 485,542.

I pipe D, from the blower E, extends. The pipe C communicates with a vertical pipe F which is secured to the top of a water tank G, as clearly shown in the figure. The tank G is normally filled with water up to the overflow pipe 9 and the end of the pipe F extends underneath the water to a distance which depends upon the force with glhich the gases are carried along by the air ast.

The top 9' of the tank G is provided with f openings 9 and just underneath the to is a transverse pipe 9 which is perforate d on its underside at g to permit fine streams of water to fall therefrom.

Disposed within the pipe F is a condensing device which consists of a spray H, at the end of a pipe 7:. controlled by a handvalve h. A branch pipe 71. forms a by-pass for part of the water. This pipe. connects with a vertically depending pipe 71. which islocateld preferably in the center of' the At the bottom of the tank G there is an out-flow pipe K, provided with a valve is for the regulation of the flow, which leads to the first settling tank Mshown in Fig. 5. This tank communicates with another tank 0 by means of the over-flow pipe m, which, in turn, is connected with the tanks P and Q by the 1 last tank communicates by means of the over-flow pipe g with the pan S in the furnace T; the latter is provided with an exit flue U which communicates with the main chimney C. This furnacemay be of any approved type. The pan S is arranged to e heated by fuel placed underneath the an which may be introduced throu h the oor i t. The walls of the furnace w ich are of non-conducting material are provided with the electrodes 8 and s which are directly in contact with the pan S. The latter, when filled with the liquid from the tank Q constitutes a conductor between the electrodes 5 and s the resistance of which is great enough to cause intense heat and the consequent evaporation of the liquid. The electrodes s and s are connected with a suitable sup ly of electric current and they may used either with the heating means to assist the latter or separately.

Leading outwardly from the settling tank Q is a pipe W which communicates with the um well X. The rotary ump Y, which is driven by the motor Z, is a apted to pump (pipes 0 and 72 respectively. The

the water from the well X through the pipe '0, into the pipe V, leading to the spray H, in Fig. 1.

From the foregoing description of the various parts of the condensingsystem, the operation thereof may be readily understood.

The ore is smelted in the furnace A in the usual manner, the smelting operation forming no part of the present invention. The smoke and gases of combustion then pass upwardly through the ipe B and meet the air blast from the fan being forced along the pipe G. The hot gases then meet the water coming from thespraying device H, which absorbs a large portion of the soluble gas and dust. As the smoke passes on down through the pipe, it is further condensed by the water coming from the pipe k The mingled air and smoke are drlven into the water in the tank G by means of which the dust, solid particles and soluble gases are extracted, the remaining constituents of the gas passing up in the form of bubbles in the vacant space at the top of the tank where it meets the fine spray from the pipe G From thence the air passes out 1 through the opening G and on up into the stack C. The pipe g is for the purpose of regulating the height of the water which will run out through this pipe if the valve is of the outlet pipe at the bottom of the tank is' not properly regulated. The water containing the solid matter and the soluble matter is now run out through the pipe K into settling tanks M, O, P and Q. Of course there may be as many of these settling tanks as is necessary. In the drawin I have shown four. The soluble matter which may consist of certain acids such as sulfuric acid is allowed to pass by means of the over-flow pipe 9 into the pan S in the furnace T where the concentration of the acid takes place. The heat for the evaporation of the water may be supplied by electrical means through the electrodes 8 and 8-. The vapor passes out through the pipe U to the stack.

A. portion of the water which is now partly purified by the precipitation of the solid matter in the settling tanks is taken out through the pipe W into the. well from whence it may be pumped into the pipe V leading to the spraying device, when it may be again used for condensing the gases. Since the pipe 9 andthe pipe V are at the same level, another portion of the partly purified water passes over through the pipe 9 into thepan .The pipe 1; leads from the supply well, (not shown) and suflicient water may be pumped through the pipe into the pipe V to oil-set the overflow through the pipe 9 into the pan S. The acid is being concentrated in the pan S while the pure water is being supplied to the system through the pipe o. Thus it will be seen that a continuous cycle is effected in which the pure water is mingled with the water pum ed back through the pipe V, thereby dil iiting the latter. The diluted water takes up more acid in the manner already described, and the acidulated water again goes through the process of partial dilution and partlal concentration.

I am aware that other forms of the device based upon the samegeneral idea mi ht be made but I consider as my own al such modifications as fairly fall within the spirit and scope of the invention.

I claim:

1. In a fume arresting system, a furnace, an exit flue, an air blast communicating therewith, a water tank, a condensing pipe in communication with said exit flue carried by said water tank and arranged to normally project underneath the water, a spraying device disposed in said condensing pipe, a perforated water pipe arranged in the top of said tank above the surface of the water, settling tanks and an evaporating device connected with said water tank.-.

2. In a fume arresting system, a furnace, an exit flue, an air blast communicating therewith, a water tank, a condensing pipe in communication with said exit flue carried by said water tank and arranged to normally project underneath the water, a spraying device disposed in said condensing ipe, a

perforated water pipe arranged in t e top cation with the last tank ot said series and means for heating said pan.

8. In a fume arresting system, a furnace, an exit flue, an 'air blast communicating therewith avwater tank, a condensing pipe in communication with said exit flue carried by said water tank, and arranged to normally project underneath the water, a spraying device disposed in said condensing pipe, a perforated water pipe arranged in the top of said tank above the surface ofthe'water, a series of settling tanks connected with said Water tank, an evaporating pan in communication with the last tank of said series, a furnace for heating said pan, and a main chimney or stack, said main stack having communication with said water tank and said furnace.

4. In a fume arrestin system, a furnace, an exit flue, an air b ast communicating therewith, a water tank, a condensing pipe in communication" with said exit flue carried by said water tank,.and arranged to normally project underneath the water, a spraying device disposed in said condensin pipe, a perforated water pipe arranged in tie top of said tank above the surface of the Water, a series of settling tanks connected with said water tank, an evaporating an in compump communicatin1 with said well and a munication with the last tank of said series, pi e fer conveying t a furnace for heatin said pan, a, main said well to said s ra in device. chimney or stack, said main stack havin OLA D WHITMORE. ,5 communication with said water tank an Witnesses:

said furnace, a well, an overflow pipe lead- G. D. MOORE,

ing from said lasttank of said series, a 1 WILLIAM MEYER.

e water pumped from 

